National Household Travel Survey(NHTS) update

MPO/RPC Directors MeetingAsadur Rahman

Lead Worker-Traffic Forecasting Section, BPED, July 28, 2015

What is NHTS Uses of NHTS NHTS Includes & Not Includes NHTS in National Level NHTS Add on questions in WI Timeline

Overview of presentation

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Survey of daily travel by all modes of transportation.

Conducted periodically to assess the mobility of the American public

Gather data of trips, modes, duration, distance, and purpose,

Links the information to demographic, geographic, and economic data for analysis

What is NHTS?

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Assists transportation planners and policy makers who need comprehensive data on travel and transportation patterns

Data is collected for 24-hour period 2015, 2009, 2001-NHTS 1995, 1990, 1983, 1977, 1969-Nationwide

Personal Transportation Surveys (NPTS)

What is NHTS?

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Quantify travel behavior at individual and household level

Analyze changes in travel characteristics over time such as trip chaining, modes, amount and purpose of travel time of day and day of week, vehicle occupancy

Demographics and travel relationship The public’s perception of the

transportation system

Uses of NHTS

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Household members relationship, education level, income, housing type

Each household vehicle, including year, make, model, and annual miles traveled

Driver’s travel information including work Household and workplace geographic info Telecommuting and internet usage Number of transit, walk, and bike trips in

24 hours period

NHTS Includes

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Costs of travel Specific travel routes or types of roads Travel of the household changes over time Identify exact household or workplace Reason for selecting a specific model of

travel over another mode

NHTS does not Include

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USDOT FHWA Westat Battelle Texas A&M Transportation Institute (TTI) Add-on partners

NHTS – Team

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26,000 households will be allocated among 50 states and DC area, in particular the counties within a state, according to the proportion of the national population

Counties containing Metropolitan Statistical Areas (MSAs)

Counties MSAs>1 M people & Heavy railCounties MSAs>1 M people & no heavy railCounties MSAs<1M peopleCounties containing no MSAs

2015 NHTS – National Level

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If a state is allocated less than 250 households, the state sample size will be increased to 250 households

Once a minimum of 250 households is assigned to each state, the remaining households will be allocated among the larger states in proportion with the state populations

2015 NHTS – National Level

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423 households would be allocated to the state of Wisconsin, based on the number of households in the state compared to all households in the nation

NHTS – WI Level

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States and MPOs have the unique opportunity to purchase samples

These additional samples, along with random national samples collected in the add-on area. Trips of ALL lengths, for ALL purposes, and for ALL modes are collected.

6 questions in 2015

NHTS Add-on

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DOTs:Arizona, California, Georgia, Maryland, New York, North Carolina, South Carolina, Texas, Wisconsin

MPOs:Des Moines (IA), Indian Nations (OK), Iowa Northland (IA), North Central Texas COG ,

NHTS Add-on

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Deliverables: Edited, weighted data, O-D geocodes for all trip purposes and modes, Odometer readings, transit, walk, bike trips, documentation and user’s guide, web-based retrieval system

Benefits: On demand, consistent local and national data, no contracting or oversight hassles, centrally coordinated, high data quality/low risk, economies of scale

Add-on Deliverables and Benefits

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1,700 sample households Summary of demographic characteristics and

travel estimates

2009 NHTS WI Add-on

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VEHTRIPS PERSTRIP Person Person PMT VMT Avg_Veh

Trips Trips Per Per Trip

Per_HH Per_Pers Household Household Length

4,515,855,113.76 7,230,110,001.60 8.81 3.76 85.43 53.34 9.84

Used it to adjust home based shopping and non home based trip rates for the development of travel demand model

the data has been passed on to 8-10 different agencies including FHWA, Oak Ridge National Lab, who have used it for a variety of applications

2009 NHTS Add-on

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11,000 households will be distributed among the eight “travel demand model areas” plus the rest of the state

Households are sampled from counties with probability proportional to county size

6/7 of the add on sample will be collected on weekdays, with the remaining 1/7 collected on weekend days

Advertisement will be done

2015 NHTS WI Add-on

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Wisconsin NHTS 2015 Add on Sample Survey Geographic Stratification

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How many times you ride a bicycle in the past 30 days?

When was your most recent bicycle trip? Purpose of your most recent bicycle trip? Facilities you used on this most recent

bicycle trip?

2015 NHTS WI Add-on DRAFT Questions Bicycle

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Transit: Three (3) most important reasons that would make your public transit system a good option for your commute?

Gas: How does your travel change when fuel prices change?

Technology: How frequently you use the technology(Internet, GPS, smart phone, etc.) for your trips?

2015 NHTS WI Add-on DRAFT Questions Others

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Analyzing Test Questions – Summer 2015 Sampled Cognitive Testing – Fall 2015 Final Survey – Winter 2015 Deliver Final Data - Summer 2017

2015 NHTS Probable Timeline

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Questions

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